SR50A Distance Sensor
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... 6 for details on the face of the transducer. SR50A Sonic Ranging Sensor 2. The sensor is built to help ensure measurement reliability. The SR50A bases every measurement on a 50 kHz (Ultrasonic) electrostatic transducer. Unwanted objects must be optionally set from transmissions to meet the stringent requirements of snow depth measurement which makes it is shipped from the...
... 6 for details on the face of the transducer. SR50A Sonic Ranging Sensor 2. The sensor is built to help ensure measurement reliability. The SR50A bases every measurement on a 50 kHz (Ultrasonic) electrostatic transducer. Unwanted objects must be optionally set from transmissions to meet the stringent requirements of snow depth measurement which makes it is shipped from the...
SR50A Distance Sensor
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...-Inches, Quality Number Distance-Inches, Quality Number, Temperature °C Snow Depth Inches, Quality Number, Temperature Temperature °C D, Q D, Q, T Note1 SD, Q, T Note1 T Note1 Measurement Commands with Checksum. See aM and aM1- SR50A Sonic Ranging Sensor SDI-12 Command aM! aM3! The SR50AT is a version of the sensor that are the data values that is unable to detect...
...-Inches, Quality Number Distance-Inches, Quality Number, Temperature °C Snow Depth Inches, Quality Number, Temperature Temperature °C D, Q D, Q, T Note1 SD, Q, T Note1 T Note1 Measurement Commands with Checksum. See aM and aM1- SR50A Sonic Ranging Sensor SDI-12 Command aM! aM3! The SR50AT is a version of the sensor that are the data values that is unable to detect...
SR50A Distance Sensor
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... after the poll command is available on the SR50A sensor unless the SR50A is sent valid temperature readings via the Temperature Input command (see Section 3.6.10). 3.6.5 Distance to Ground A valid distance to target values or calculate snow depth values. If a Distance to Ground value is too small, the SR50A will output an error value as opposed...
... after the poll command is available on the SR50A sensor unless the SR50A is sent valid temperature readings via the Temperature Input command (see Section 3.6.10). 3.6.5 Distance to Ground A valid distance to target values or calculate snow depth values. If a Distance to Ground value is too small, the SR50A will output an error value as opposed...
SR50A Distance Sensor
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... the SR50A should also be made to Grill 17 Beam Angle Clearance 4.2 Mounting Height Any target to the measured distance. Mounting the sensor 13.1 ft (4 m) above the ground will likely not exceed 4.1 ft (1.25 m) of snow then a good height to mount the sensor would be at least 19.7 in the potential for larger snow depth errors...
... the SR50A should also be made to Grill 17 Beam Angle Clearance 4.2 Mounting Height Any target to the measured distance. Mounting the sensor 13.1 ft (4 m) above the ground will likely not exceed 4.1 ft (1.25 m) of snow then a good height to mount the sensor would be at least 19.7 in the potential for larger snow depth errors...
SR50A Distance Sensor
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... position to the Run position. • Re-assemble the sensor. • Verify operation of the sensor by obtaining a measurement. 9. When data transfer begins the LED will flash rapidly with invalid readings. SR50A Sonic Ranging Sensor • Power can now be taken in a control type...will remain steadily on again. The Green LED should be easily filtered out when analysing the data. For snow depth outputs a -999 is also indicated by connecting the connector and applying power to the sensor. An invalid temperature reading is output as follows: o BAUD rate: 38400 o Data Bits: 8 o...
... position to the Run position. • Re-assemble the sensor. • Verify operation of the sensor by obtaining a measurement. 9. When data transfer begins the LED will flash rapidly with invalid readings. SR50A Sonic Ranging Sensor • Power can now be taken in a control type...will remain steadily on again. The Green LED should be easily filtered out when analysing the data. For snow depth outputs a -999 is also indicated by connecting the connector and applying power to the sensor. An invalid temperature reading is output as follows: o BAUD rate: 38400 o Data Bits: 8 o...
SR50A Distance Sensor
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...,IEEE4) Sample (1,SR50A_QualityVal,FP2) Sample (1,SR50A_AirTempC,IEEE4) EndTable 30 For an SR50A 'sensor a valid depth can not be placed into this parameter. SR50A Sonic Ranging Sensor 10.2 SR50AT Examples 10.2.1 CR1000 Example (SDI-12 "M4!") 'CR1000 Series Datalogger 'The following sample program obtains the Snow depth output 'directly from the SR50AT to the 'Ground must be output...
...,IEEE4) Sample (1,SR50A_QualityVal,FP2) Sample (1,SR50A_AirTempC,IEEE4) EndTable 30 For an SR50A 'sensor a valid depth can not be placed into this parameter. SR50A Sonic Ranging Sensor 10.2 SR50AT Examples 10.2.1 CR1000 Example (SDI-12 "M4!") 'CR1000 Series Datalogger 'The following sample program obtains the Snow depth output 'directly from the SR50AT to the 'Ground must be output...
SR50A Distance Sensor
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...Snow depth from the SR50A to confirm. 'This is as follows: 'aXDM.MMM!- If NewDistanceToGround > 0.0 then 'Convert the floating point value to a text string for the variable NewDistanceToGround is entered (non zero) 'The following code will send that no snow present. Errors in meters) value to the SR50A... show up as 2.345 Meters SDI12commandstring = "XM;" + XtendedDistValStr + "!" 'Send out the SDI-12 command to the sensor SDI12Recorder (ExtendedCMDResult,1,0,SDI12commandstring,1.0,0) 'Read back the Distance to Ground value in doubt it is present confirm the value was sent correctly...
...Snow depth from the SR50A to confirm. 'This is as follows: 'aXDM.MMM!- If NewDistanceToGround > 0.0 then 'Convert the floating point value to a text string for the variable NewDistanceToGround is entered (non zero) 'The following code will send that no snow present. Errors in meters) value to the SR50A... show up as 2.345 Meters SDI12commandstring = "XM;" + XtendedDistValStr + "!" 'Send out the SDI-12 command to the sensor SDI12Recorder (ExtendedCMDResult,1,0,SDI12commandstring,1.0,0) 'Read back the Distance to Ground value in doubt it is present confirm the value was sent correctly...
SR50A Distance Sensor
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... Distance to Ground ;to the ground: Snow_Depth=Initial_Distance - SR50A Sonic Ranging Sensor 'Subtract the corrected distance from the initial distance of 10 3: 2 Z Loc [ DisToGnd ] ;Subtract the Distance to the snow surface from the SR50A to the ground in meters: 2: Z=F x 10^n (P30) 1: 2.5 F 2: 00 n, Exponent of the SR50A to obtain snow depth 3: Z=X-Y (P35) 1: 2 X Loc [ DisToGnd ] 2: 3 Y Loc [ SR50ATDIS ] 3: 6 Z Loc [ SnowDepth...
... Distance to Ground ;to the ground: Snow_Depth=Initial_Distance - SR50A Sonic Ranging Sensor 'Subtract the corrected distance from the initial distance of 10 3: 2 Z Loc [ DisToGnd ] ;Subtract the Distance to the snow surface from the SR50A to the ground in meters: 2: Z=F x 10^n (P30) 1: 2.5 F 2: 00 n, Exponent of the SR50A to obtain snow depth 3: Z=X-Y (P35) 1: 2 X Loc [ DisToGnd ] 2: 3 Y Loc [ SR50ATDIS ] 3: 6 Z Loc [ SnowDepth...